<template>
  <div class="login_container">
    <div class="login_box">
      <div class="avatar_box">
        <img src="../assets/logo.png" alt />
      </div>
      <!-- 登陆表单区域 -->
      <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" label-width="0px" class="login_form">
        <el-form-item prop="username">
          <!-- <el-input prefix-icon="iconfont icon-user"></el-input> -->
          <el-input v-model="loginForm.username" prefix-icon="iconfont icon-user"></el-input>
        </el-form-item>
        <!-- username -->
        <el-form-item prop="password">
          <el-input v-model="loginForm.password" prefix-icon="el-icon-edit" type="password"></el-input>
        </el-form-item>
        <!-- password -->
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登陆</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
        <!-- buttton -->
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      loginForm: {
        username:"admin",
        password:"123456"
      },
    loginFormRules: {
      username: [
        {
        required: true,
        message: "请输入用户名",
        trigger: "blur"
      },
      {
        min: 3,
        max: 10,
        message: "长度在3到10个字符",
        trigger: "blur"
      }],
      password: [
        {
        required: true,
        message: "请输入登陆密码",
        trigger: "blur"
      },
      {
        min: 6,
        max: 15,
        message: "长度在6到15个字符",
        trigger: "blur"
      }],
    }  
    };
  },
  methods: {
    resetLoginForm() {
      this.$refs.loginFormRef.resetFields();
    },
    login() {
      this.$refs.loginFormRef.validate(async valid => {
        if (!valid) return;
        const {data: res} = await this.$http.post("login", this.loginForm);
        if(res.meta.status !== 200) return this.$message.error("登陆失败");
        this.$message.success("登陆成功");
        window.sessionStorage.setItem("token",res.data.token);
        this.$router.push("/home");
});
    }
  }
};
</script>

<style lang="less" scoped>
.login_container {
  background-color: #2b4b6b;
  height: 100%;
}

.login_box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.avatar_box {
  height: 130px;
  width: 130px;
  border: 1px solid #eee;
  border-radius: 50%;
  padding: 10px;
  box-shadow: 0 0 10px #ddd;
  position: absolute;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: #fff;
  img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-attachment: #eee;
  }
}

.btns {
  display: flex;
  justify-content: flex-end;
}

.login_form {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}
</style>